Hacktivist Exploitation of Zero-Day Vulnerabilities in South Asia: A Critical Threat Assessment

Executive Summary

Hacktivist groups in South Asia have escalated their cyber operations by actively weaponizing zero-day vulnerabilities. This trend poses a critical threat to regional cybersecurity, necessitating immediate attention and response.

Introduction

Zero-day vulnerabilities—previously unknown flaws in software or hardware—have become prime targets for cyber actors seeking unauthorized access. In South Asia, hacktivist groups are increasingly exploiting these vulnerabilities to advance their agendas, often with significant geopolitical implications.

Recent Exploitations and Actor Methodologies

In early 2026, the Bangladesh-based hacktivist group Darkhackbd, founded in 2025 by Imtiaz Ahmed, was implicated in a series of cyberattacks targeting critical infrastructure across South Asia. Utilizing zero-day vulnerabilities, Darkhackbd breached several government and financial institutions, deploying custom malware to exfiltrate sensitive data and disrupt operations. Their tactics included spear-phishing campaigns and the exploitation of unpatched software flaws, demonstrating a sophisticated understanding of cyberattack methodologies.

Similarly, the Indian hacktivist collective, known as the Network Crack Program Hacker (NCPH) Group, has been active since 1994. In recent operations, NCPH exploited zero-day vulnerabilities in widely used software applications to infiltrate systems and gather intelligence. Their leader, Tan Dailin (alias "Wicked Rose"), has been associated with the development of advanced rootkits and backdoors, indicating a high level of technical expertise within the group. (en.wikipedia.org)

Role of Exploit Brokers

The proliferation of zero-day exploitations in South Asia is partly driven by exploit brokers who facilitate the acquisition and sale of these vulnerabilities. For instance, in March 2025, a Russian exploit broker known as "Operation Zero" offered up to $4 million for Telegram exploits, highlighting the lucrative market for zero-day vulnerabilities. (techcrunch.com) Such transactions enable hacktivist groups to access sophisticated tools, thereby enhancing their operational capabilities.

Implications and Recommendations

The active weaponization of zero-day vulnerabilities by hacktivist groups in South Asia underscores the need for robust cybersecurity measures. Organizations should prioritize timely patching of software, conduct regular security audits, and invest in threat intelligence to identify and mitigate potential exploitations. Collaboration between governmental agencies, private sector entities, and international partners is essential to strengthen the region's cyber resilience.

Conclusion

The exploitation of zero-day vulnerabilities by hacktivist groups in South Asia represents a critical and evolving threat. Proactive and coordinated efforts are imperative to safeguard sensitive information and maintain the integrity of critical infrastructure.

Highlights:

• Russian zero-day seller is offering up to $4 million for Telegram exploits | TechCrunch, Published on Thursday, March 20
• Google Confirms 97 Zero-Day Attacks And Points Finger At China For 12, Published on Tuesday, March 26
• Chinese hackers are now using this tactic for spying - India Today, Published on Sunday, April 28